Cab lock



FIG. 1 is a top front perspective view of a cab lock showing my new design;

FIG. 2 is a front plan view thereof;

FIG. 3 is a back plan view thereof;

FIG. 4 is a left-side plan view thereof;

FIG. 5 is a right-side plan view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

In the drawings, the broken lines depict portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a cab lock, as shown and described. 